L-Phenylalanine Ethyl Ester Hydrochloride
This ester salt of phenylalanine is an aromatic derivative with amino-acid oxygen function, classified in HTS 2922.49.30.00 as per additional U.S. note 3 and chapter note 3(A). Used in peptide synthesis.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 6.5% | +25.0% | 31.5% |
| 🇲🇽Mexico | 6.5% | — | 6.5% |
| 🇨🇦Canada | 6.5% | — | 6.5% |
| 🇩🇪Germany | 6.5% | — | 6.5% |
| 🇯🇵Japan | 6.5% | — | 6.5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
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Import Tips & Compliance
• Specify ester as classified with parent acid per note 3(A/B); provide salt analysis
• Pitfall: declaring as separate inorganic salt
Related Products under HTS 2922.49.30.00
DL-Phenylalanine
DL-Phenylalanine is an aromatic amino acid with a single carboxylic acid oxygen function, classified under HTS 2922.49.30.00 as it falls within additional U.S. note 3 to section VI for specific oxygen-function amino-compounds. It is used in nutritional supplements and pharmaceutical intermediates.
L-Tyrosine
L-Tyrosine is a para-hydroxyphenyl derivative of phenylalanine, an aromatic amino acid with amino-acid oxygen function, covered by HTS 2922.49.30.00 under additional U.S. note 3. It serves as a precursor for neurotransmitters and thyroid hormones.
DL-Tryptophan
DL-Tryptophan, an indole-containing aromatic amino acid with single oxygen function, is specified in additional U.S. note 3 to section VI, fitting HTS 2922.49.30.00. It is essential for serotonin synthesis in supplements.
L-Histidine
L-Histidine is an imidazole-ring aromatic amino acid under oxygen-function amino-compounds in HTS 2922.49.30.00 per additional U.S. note 3. Used in cell culture media and antihistamine precursors.
Tyrosine Methyl Ester
Tyrosine methyl ester, an ester of the aromatic amino-acid tyrosine, fits HTS 2922.49.30.00 under additional U.S. note 3 for section VI. Primarily for synthetic chemistry applications.
Tryptophan Sodium Salt
Sodium salt of tryptophan, an aromatic amino-acid salt with single oxygen function, covered by HTS 2922.49.30.00 and chapter note 3(C)(1). Used in pharmaceutical formulations.